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DESCRIPTION – OPERATIONS
6-
GENERAL DESCRIPTION
The condensing unit is made up primarily of:
1 COPELAND hermetic scroll compressor.
1 air-cooled condenser with cylinder head fan(s).
1 liquid receiver according to EC standard 2014/68/EU (PED) with boss for the installation of a safety valve (compulsory).
Warning : it is mandatory for the refrigeration contractor to assembly a safety valve on receiver with category over I.
The set-up is mounted on a painted sheet steel frame.
DIFFERENT CONFIGURATIONS
Refrigerating
fluid
R404A/R507A/R134A/R407F/R407A/R407C/R422A/R417A.
Application
:
Medium temperature:
-15°C to +5°C
Low temperature:
- 40°C to -20°C
Options
.
Liquid line with dryer, sight glass, solenoid valve and stop valve.
.
Suction line (with vibration eliminator)
.
HP/LP Pressure switch BP - HP regulation - LP pump down
.
Oil separator
.
Crankcase Heater
.
Oversized receiver
.
Fan speed control diam. 355 and 450 mm.
. Start-up valve for low temperature machines.
7-
INSTALLATION
SPECIFIC INSTALLATION RECOMMENDATIONS
For certain installations (e.g.: multi-station refrigeration, very large network), the use of an oil separator may prove necessary. It
is essential that the separator return be positioned on the suction line.
REFRIGERATION NETWORK CONNECTION
General information
B
EFORE ANY WORK IS DONE ON THE REFRIGERATION CIRCUIT
The piping used (copper or steel) must be of refrigeration quality in accordance with PED 2014/68/EU.
All piping must be correctly supported and fixed and should in no case be allowed to restrict the piping of the unit.
Connection
to suction
The pipe diameters must be determined in advance to ensure correct oil return and should not be based on the diameters of the
collector suction valves.
The piping should always fall towards the unit, never away.
A suction line accumulator, preferably non shut-off, can be added on this circuit, as long as it is correctly sized in relation to the
power of the unit and the installation design.
Connection
to liquid line
To be connected on the liquid receiver and the following items should be provided in this order:
-
Dryer
-
Sight-glass for the fluid
-
Solenoid valve
This solenoid valve should be positioned near the evaporator if the fluid line circuit exceeds 5m in length.
If the option of a liquid line is required, this should be connected after the solenoid valve if the installation layout permits.
ELECTRICAL CONNECTIONS
General information
The machine is designed in accordance with EN60204-1.
All cabling on site must conform to the legal standards in force in the relevant countries and to EN60204-1.
Except for special operation, the nominal current must be:
,
THE HOLDING CHARGE MUST BE REMOVED
.
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